Memory (Miles Vorkosigan #10)

Dying is easy. Coming back to life is hard. At least that what Miles Vorkosigan thinks and he should know, having done both once already.

Long Synopsis:

Even after Miles returns to military duty, his late death seems to be having a greater effect than he's willing to admit. His weakness reveals itself to the world at large at just the wrong time and in just the wrong way, and Miles is summoned home to face the Barrayarn Imperial Security chief.